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Maxim MIMO linearization circuit to improve base station system efficiency

Maxim announces the SC2200 Dual Channel Power Amplifier Linearization Circuit (RFPAL) to help designers achieve low power, low cost, small form factor RF front ends. The new product reduces power amplifier power consumption by up to 70% compared to back-off operation. In addition, the device reduces bill of materials (BOM) costs by up to 50% and is eight times smaller than other DIGITAL Pre Distortion (DPD) solutions on the market. With the exponential growth of mobile data traffic, the communications industry is evolving from a voice-centric macro network to a heterogeneous network (Heterogeneous NETWORKS) with greater coverage and capacity. This product is a better alternative to the less efficient power amplifier fallback operation and there is no need to develop software or complex algorithms. The device integrates a preamplifier and a single 1.8V supply optimized for a wide range of power amplifier architectures, technologies, and power levels. The linearization circuit supports 2G, 3G and 4G systems, including TD-LTE and FD-LTE.
The product is suitable for cellular infrastructure applications such as large and small cellular base stations, distributed antenna systems (DAS), active antenna systems (AAS), remote RF modules, and other multiple input multiple outputs (Multiple- Input Multiple-Output; MIMO) system. In addition, the product requires only 1 square inch of board space to increase power amplifier efficiency while the two channels consume less than 1.5W at full load. This helps manufacturers increase their competitive advantage and help operators meet operational and deployment costs.